Method of making sheet-metal sleeves



' ,se t. -22,-19z5. v 1.554.95i

H. H. BRYAN :muon OF MAKING sumw METAL su s Filed April 17, 1923Patented Sept. 22, 1925.

UNITED STATES I 1,554,951- PATENT OFFICE.

HAMILTON H. BRYAN, or CAMBRIDGE CITY, IN IANA, AssIGNon To THE STANDARDMANUFACTURING COMPANY, or CAMBRIDGE CITY, INDIANA, A coaroRA'rIoN orINDIANA.

I METHOD OF MAKING SHEET-METAL SLEEVES.

Application filed April 17," 1923. Serial No. 632,791.

To all whom it may concern: Y

Be it known that I, HAMILTON H. BRYAN, a citizen of the United States,residing in Cambridge City, in the county of l/Vayne, State of Indiana,have invented new and useful Improvements in Methods of MakingSheet-Metal Sleeves, of whichthe following is a full, clear, andcomprehensive specification and exposition, the same being such as willenable others to make and apply the same with exactitude. I

The object of-my present invention, broadly speaking, is to provideasleeve to be carried pivotedly, or rotatably, by a non-rotatable orrelative stationaryi element, and at the same time forming a guidewayfor a second element to slide unol'istructedly therethrough, said sleevebeing simple in character, strong and durable in its construction,easily applied in operative position, and which can be manufactured andsold at a comparatively low price. 5

More specifically stated, my :objectv is to provide a sleeve formed froma single blank of sheet metal, being so arranged that it may be formedwith a minimum of operations applied thereto, and providing meanswhereby a slidable element may reciprocate therethrough, and at the sametime allowing said reciprocating element to have swinging or oscillatingmovements simultaneously with its reciprocations.

And, finally, my object is to provide an economical method of makingsheet metal sleeves, substantially as herein described, whereby thesleeves may be produced at a minimum cost,a nd at the same time having amaximum of e'tficiency in practice.

Other minor objects and particular advantages of the invention willsuggest themselves in the course of the following description, and thatwhich is new and novel will be correlated in the appended claims.

The preferred manner of carrying out the principlesof my invention in apractical way is shown in the accompanying drawings, in whichFig. 1 is aplan of a fiat blank cut to the desired dimensions to form one of mysleeves; Fig. 2 is an end elevation showing the same after it has beengiven the first bending operation; Fig. 3 is a perspective view of thesame after it has been given its final bending operation, and showingthe complete sleeve alone; Fig. 4 is a front elevation showing thesleeve in actual operative position in connection with a relative fixedelement and a slidabl'e element; and Fig. 5 is a cross-sectiomas takenon the line'55 of Fig. 4.

Similar indices denote like parts throughout the several views. 7

In order that the construction, the operation and the advantages of theinvention may be more fully understood and appreciated, I will now takeup a detailed description thereof, in which I will set forth the same ascomprehensively as I may. r As shown in Fig. 1 the sheet metal blank 1sfirst formed substantially square, except that it has rounded corners. s

The second operation is cutting the two slots, 1 and 2, throughtheblanks, said slots being parallel with each other and they are spacedapart, and at the same time a round aperture 3 is formed through thecenter of the blank.

The blanks, with said slots and the aperture formed therein, arev nextplaced in a machine, such as abulldozer, by which the material isbrought to substantially the form shown in Fig. 2, this beingaccomplished by pressing the central portion, that is between the slots,in one direction while the parts at the ends outward, from said slotsand parallel therewith, are being bent in the opposite direction, and atthe same time the sides at right anglesto said slots are bent to extenddownward and outward, thereby bringing the parts to the positions shownin Fig. 2. In this operation the central portion concentric with theaperture 3 is formed dish-shaped as indicated.

In the second operation just described the various parts begin to assumesomewhat their final shape, as for instance: The sides 4 and 5; the baseportion 6; the straps '7 and 8; and the end portions 9 and 10 of thebase 6.

In the next bending operation the sides 4 and 5 are bent inward untilthey are at right-angles to the central portions of the straps 7 and S,and at the same time the ends 9 and 10 are pressed flat against theinner faces of the respective sides 4 and 5, whereby they are also atright-angles to said straps, and if it were not for the dishing of thebase 6 they would also be at right angles thereto.

We now have the sleeve formed substantially as shown in Fig. 3.

Letter A denotes a relatively stationary element, as for instance ablock or a bar, or the like.

A bolt, or a screw 11, may now be inserted through the aperture 3 andthen run into the element A, by which the sleeve is revolvably mountedto the element A, as shown in Fig. 5.

Letter B denotes the slidable o1 recipro eating element, the same beingin the nature of a bar, which is of such size in cross section that itwill fit loosely in the sleeve, that is to say, it is contactable withthe ends 9 and 10, the straps 7 and 8, and the outer portions of thebase 6.

The purpose of dishing the base (3 is twofold: (a) It removes the headof the screw 11 from possible engagement with the ele ment B, and (Z2)it prevents the base 6 from contacting with the element A, exceptimmediately adjacent of the screw 11, where by the friction will bepractically nil.

It is now most clearly manifest that the element B is free toreciprocate in the sleeve, at the same time the element B may have anoscillating movement, or even a planetary movement it desired, therebyaccomplishing the desideratnm of this invention in a practical manner.

I desire that it be understood that various changes may be made in theseveral details herein set forth without departing from the spirit ofthe invention and without sacrificing any of the advantages thereofwhich are new and useful.

Having now fully shown and described my invention, what I claim anddesire to secure by Letters Patent of the United States, is-

1. The method of making a pivotal sliding mounting sleeve, whichconsists in providing a sheet blank with a pair of transverse slots,bending the entire side margins oil. the portions of said blanks beyondthe slots and on longitudinal lines that intersect the slots, atsubstantially right angles to the body of the blank to form sides andupstanding slide-keepers, bending theportion between the slots andsubstantially to the ends of said slots inwardly to form a pivotmounting, and forming a pivotreceiving opening in said intermediateinset portion.

2. The method of making a pivotal slid ing mounting sleeve, whichconsists in pro viding a sheet blank with a pair of transverse slots,bending the entire side margins of the portions of said blanks beyondthe slots and on longitudinal lines that intersect the slots, atsubstantially right angles to the body of the blank to form sides andupstanding slide-kcepers, bending the portion between the slots andsubstantially to the ends of said slots inwardly and dishing said insetportion, and forming a pivot-receiving opening in said intermediateinset portion.

3. The method oi making a sleeve, which consists in providing asubstantially square blank of sheet metal with a central aperture andwith two slots parallel to each other and located at equal distancesfrom the aperture, bending the said blanks on two lines transversely ofsaid slots into channel form, forming a bottom and sides of a channehdepressing the central portion of the bottom of the channel, and leavingthe end portions of the bottom of said channel in the original plane,whereby the upper halves of the sides of said central portion are foldeddownwardly and upon the inside of the lower halves of said sides, andsimultaneously depressing that central portion of the bottom downwardlyinto dish form.

HAMILTON H. BRYAN.

